Манометр

With a Manometer you can measure pressure/$ on a pneumatic network. Additionally, some Pneumatic machines/tubes have some special information about them. For instance, the Safety Valve Tube Module/$ displays its safety threshold. So if you aren't feeling comfortable with redstone maths, this tool may be of use to you.

Crafting a Manometer

With mods such as The One Probe/$ or WAILA/HWYLA/$ installed, the Manometer/$ may be of limited use.